Appointment Hour Booking – Booking Calendar <= 1.5.86 - Authenticated (Contributor+) Stored Cross-Site Scripting

2026-07-23 00:00

Ananda Dhakal

Strategic Overview

Status

Patched in 1.5.87

Affected PluginAppointment Hour Booking – Booking Calendar

Affected Version<= 1.5.86

CVSS6.4Medium

CVECVE-2026-65514

View all Appointment Hour Booking – Booking Calendar vulnerabilities

Vulnerability Overview

The Appointment Hour Booking – Booking Calendar plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 1.5.86 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Technical Analysis

REMEDIATION: Update to version 1.5.87, or a newer patched version --- IDENTIFIER: CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

External References

https://www.cve.org/CVERecord?id=CVE-2026-65514 https://www.wordfence.com/threat-intel/vulnerabilities/id/c20e0552-1ff6-43d9-be87-f6c482f1866e

CVSS Vector

6.4

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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